Isolation slowly starves away a man's mind gnawing away at what he holds dear the flooding room fills as he gasps for breath praying for a pocket deeper down he sinks to the darker depths In his chest sharp blades writh like snakes his heart beat thuds like a heavy hammer relentlessly ringing in his ears pulsating pressure like a serpents coil crushes cracks and breaks his brittle body only the pain prevents him from drifting a hazy blur blackens his vision as silently his screams bubble away In one more breath his futile fight finishes.
When suddenly a deathly peace penetrates like the shock after a plunge into an icy pool as a feint flicker of light shines he drifts towards his final hope
I tried to write this with a dual ending, the light he sees is either the surface as he re-emerges or the light before death.